Unauthenticated Privilege Escalation in Ultimate Member Plugin for WordPress
CVE-2020-36157

10CRITICAL

Key Information:

Vendor

Wordpress
Status
Ultimate Member
Vendor
CVE Published:
4 January 2021

What is CVE-2020-36157?

The Ultimate Member plugin for WordPress contains a vulnerability that allows unauthenticated users to escalate their privileges. This is due to insufficient filtering on the role parameter during the user registration process. An attacker could manipulate this parameter to gain unauthorized access to elevated roles and capabilities within the WordPress environment, potentially compromising security across approximately 100,000 websites utilizing this plugin.

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References

https://wordpress.org/plugins/ultimate-member/#developers
x_refsource_MISC
https://www.wordfence.com/blog/2020/11/critical-privilege...
x_refsource_MISC
https://wpscan.com/vulnerability/33f059c5-58e5-44b9-bb27-...
x_refsource_MISC

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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